Wow, I'm shocked so many tech's would be unwilling to "even try" as people above have put it. Of course the U/S is to look at the medically necessary elements of the baby developing, but obviously the vast majority of parents will expect and want to know the gender of their child, even if the gender isn't important to them. Our tech was fabulous and I think my U/S was at around 18 wks. When she said "boy" and showed us, I asked how much of a chance there was of the gender being incorrect, and she said she'd personally help me return the blue baby items if "he" came out a "she." She was right.